Signal device.



Y E. AUFIEHO.

SIGNAL DEVICE. APPLICATION FILED OCT. 29, |913.

Patented May 22, 1917.

Leccese. i

s pecincation of Letters Patent.

niaarnnnenrinno, oF'nnooKLYn, New Yon'x'.

I.eppneanpnnledoctberaa,1913.' seriai'No. 798,101.

' Tortll inkom t'mag/ concern# 1 Be it known that I, EMANUL A Umnno, a citizen of the United States,

and a resident of Brooklyn, county of Kings New York, have invented anew and useiul Improve ment' in Signal Devices, which fully set forth in the 'following specification.

:Thisinvention relates particularly to dia-4 phragrn-deuices where lthe diaphragm is actuated mechanically by the. teeth or cams of a Suitable rotary Inernber. acting upon a pronipulation by `the attendant.`A

.. A bled, compact,

f vice .of the character indicated.

jection carried by the diaphragm, and is perf ticulary adapted for a device located at some ,istence from the. operating-handle which-'isili convenient reachof the attendant. The main 'object of the invention is to produce a device of this character vwhich 1s always readyto give an Aadequate signal` alarm of the 'desired loudness and pitch and duration, by 'means-of simple and eas inaare to produce. an inexpensive, easily assent durable, and ever-ready deieature of the'i'nvention is the employment of two oppositely-workixig pawl-andratchet 'devices for actuating the 'rotor in continuous dlrection, and two drums withoppositelywound cables for actuatmgysaid devices.

Other features of the invention will be here` inafter pointed out and claimed.

" 1 and 3 vare diagrammatic views .illustrating cam .or rotor vThe invention will be bestuiiderstood by reference tothe annexed drawings, in which Figure 1 shows a preferred embodiment thereof, partlyvin longitudinal section; and'Figs'. 2

modifications. 4

Referring to Fig. 1, the diaphragm. 1 is clamped between the front: wall 2 and the Vian'god rear-casing 3, preferably with wash-v ers and scrcws,as shown. Any suitable form of .horn or trumpet'may be secured to or made integral with the front, casing, and itV will be noted'thatthe rear-casing is a seam* less member requiring closure atthe rear. transversely Within the'casing, preferably in the adjustablebearings threaded into the walls of' thecasing and no vseparate cap or may berlocked in place in' any convenient manner. Fast upon thiszshaft is the co'm paratively la'rffetoothed-wheel or actuatin 6 to actupon the 'projection' which extends.

adjustably fromV the rear of the diaphragm upon theshaft and carryinginvention 1s A,Other o jects A striking The shaft 4 is journaled 5-5 that are screw- 'that of the twoidrluns;

and construction.

vand projects into the path of l the teeth or cams of the rotor. member 8,v

lshown asa disk,l is alsofast on theshaft, and

carries two- (spring-pressed) pawls,. one lon each S'1de. On each 'side ofrtnisinember 8A there 4is a comparatively small drum loose'V gage one Aof the pawls aforesaid.

while the other pawl 11 lies in front of its ratchet 12. A cable 13 is'wound one or more times around the drum of ratchet 10; 'and a similarcable .4 is wound, in opposite direction, around the drum V(if-ratchet '12. At their inner ends these. lcables are secured to 4a spring or springs 15, here shown as a separate vhelical spring for cache-able and secured to a stationary support. as post 16. The 'outer Patented May 2.2i, A1.917

a ratchet to en- One pawl, i 'as 9, lies behind 4its ratchet` 10;

ends of the cables are shown as united to the cross-head 17, `fromnwhich extends the pulling-member. 18 that passcsout through a hole inthe rear end of the casing.

As me1nber`18 is drawn outward, these clockwise, as viewed from the top of thc sheet), while the other ratchet turns idly under its 'pawlg and, duringr thereversc movement dueto the spring, thc other pawl and ratchet (l1 and 12) rotate rotor 7 inthe same (connterclockwise) direction. In short, there arc-two complete revolutions of the rotor, for. each "to-:1nd-fro movement of the pulling-member.

Within' roach of the attendant is located) convenient means for actuating the derice,

ing 19, Vin which is journaled the shaft 20 Acomprising preferably the-semi-annnlar cnswith its crank-haiulle 21, andwith the partial-pnlleyor quadrant 22 fast on the shaft and of la radius-many and at the outer corner 23 of this quadrant secured the pulling-member 18. Preferably this pulling-- men'lberuiinsists of u chain, though it ma boia fcordfor cable of any suitable material Preferably, also, this pullingmember surroundedby a seamless tubing 24, and the latter is reinforced on the times greater thanl outside, at 25, as by the usualfspirallyeivound 20 taclied'to a single spring 28 with'the other,

3o used to the' exclusion of other parts.

. inainfcasing 2,'.around 'the hole for tliepulling-member; and the' other end to the secondary casing' 19, around a similar hole lofca-ted about opposite the normalposition of Y lthe-attachmentpoint23.v Ina `construction of the proportions indicated, a vsingle throw of the. handle 21 would sufce to produce a complete revolution of the drums, followed s by av complete reverse revolution thereof,'-

or twovcoinplete high-speed'revolutions' of the rotor-for one' manipulation 'of the handle.

If desired, in place of the two separate caone' drum and then, after. passiiigaround a 'pulley 27, wound'i'n the reverse direction 'around the other drinn (as in Figs. 2 and 3);' and one end of saidicable may be a'tend attached, to the operating handle 29 (as in Fig.` 2), or the twov ends of said cable-may befattaclied to the opposite arms of an operating-lever 30, as in Fig. 3. l

The invention has thus been Vdescribed* with considerable detail, 'but only for the.,

sake of c learne'ss, since the -invention may be embodied in various,formsypartsbinay be transposed, and parts of the'invention The invention having thus been fully described, what vis claimed is:

- l A signal-alarm device, comprising an acoustic diaphragm,v a shaft having` yfast thereon 'a toothed-wheel adapted tovibrate said diaphragm, two drums4 loose. on said shaft, 'allternatelyworking pawl-and-ratchet 1 devices connecting` the respective drums with said shaft, spring-connected cable wound onl each drum with the Aturns of said wi'iidl ingsin oppositedirections oil-:the respective p Witnesses:

whereby said wheel' is rotated continuously to vibrate said diaphragm during both niovements lof said' cable.

2. `Asignal-alarmi.deviCQ comprising anv acoustic diaphragm' andairotor for vibrating; the same, 'two :pawlvand-ra'tchet devices operating alternately7 to actuate said rotor, i

and two drums with oppositelywvound cables, said cables being resiliently secured at one end and connected at the other to` an actuatinpyhandle.` blesv 13 and 'Maand the springsl (as in Fig. l), asiiigle cable 26finay'be wound around handle, and .rotor-operatingmechanism actuated thereby.

` 4:. A signal-alarm device, comprising an acoustic diaphragm anda comparatively large rotor havingcircumferential teeth for vibrating tlie same, two pawl-and-ratchet devices alternately actuating said rotor, two

comparatively small drums each' having a 'cable oppositely wounditheieon for actuatxingzsaid devices,andl a .comparatively long; lever-handle connected thereto, whereby coinpaiatively short angular travel oftliehand while upon said handle produces greater angi'ilar travel of `said drums and still greater angulartrav-el of saidrotor; v

In testimony whereof I havel signed'this specification in the presence of two subscrib- EM'ANU'EL Aiiiiiiii'io v (LA. L. M AssiE, RALPH SCOTT.

'and connected at the other" to an actuating- 

